31023305235023 has 16 divisors (see below), whose sum is σ = 31565037014400. Its totient is φ = 30482107941600.

The previous prime is 31023305235019. The next prime is 31023305235113. The reversal of 31023305235023 is 32053250332013.

It is a cyclic number.

It is not a de Polignac number, because 31023305235023 - 2² = 31023305235019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023305225023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228973840 + ... + 1228999082.

It is an arithmetic number, because the mean of its divisors is an integer number (1972814813400).

Almost surely, 2^{31023305235023} is an apocalyptic number.

31023305235023 is a deficient number, since it is larger than the sum of its proper divisors (541731779377).

31023305235023 is a wasteful number, since it uses less digits than its factorization.

31023305235023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34982.

The product of its (nonzero) digits is 48600, while the sum is 32.

Adding to 31023305235023 its reverse (32053250332013), we get a palindrome (63076555567036).

The spelling of 31023305235023 in words is "thirty-one trillion, twenty-three billion, three hundred five million, two hundred thirty-five thousand, twenty-three".